TWI475761B - Electrical card connector - Google Patents

Description

Electronic card connector

The present invention relates to an electronic card connector, and more particularly to an electronic card connector in which an electrically conductive terminal is embedded.

A conventional technique related to the present invention can be found in U.S. Patent No. 7,435,115 B2, issued Oct. 14, 2008, which discloses an electronic card connector comprising an insulative body and a plurality of electrically conductive terminals secured to the insulative body. The insulative housing is provided with a mounting wall, and the conductive terminal includes a mounting portion that is fixed in the mounting wall in an insert molding manner. However, after the insert molding, the upper surface of the mounting wall is higher than the upper surface of the mounting portion of the conductive terminal. By arranging, when the electronic card is inserted, the bottom surface of the electronic card must be inserted along the upper surface of the mounting wall, which inevitably increases the height of the electronic card connector. In other words, the prior art fixes the conductive terminals by providing a thicker mounting wall.

However, as electronic products (such as mobile phones, tablets, etc.) are getting thinner and thinner, the corresponding electronic card connectors must also be thinner and thinner to meet customer needs. The problem is the internals of electronic products. There is not enough room for a thicker electronic card connector to be installed.

Of course, reducing the thickness of the insulating body mounting wall is a feasible solution for reducing the overall height of the electronic card connector. However, once the thickness of the insulating body is thinned, the portion for fixing the conductive terminals is correspondingly reduced. How to stably hold the conductive terminals in this case has become a technical problem commonly encountered in the industry.

In view of the above, it is an object of the present invention to provide an electronic card connector in which a conductive terminal is firmly held.

The object of the present invention is achieved by the following technical solution: an electronic card connector having a receiving space for receiving an electronic card, the electronic card connector comprising an insulating body and a plurality of conductive terminals fixed on the insulating body; The insulating body is provided with a mounting wall, the mounting wall is provided with a first fixing block and an inner wall surface exposed to the receiving space; and at least one of the plurality of conductive terminals is provided with a first mounting on the mounting wall a mounting portion, a contact arm extending from one end of the first mounting portion and protruding into the receiving space, a second mounting portion extending from the other end of the first mounting portion and mounted on the mounting wall, and further from the second mounting portion An extended soldering portion, the contact arm is higher than an inner wall surface of the mounting wall and is in electrical contact with the electronic card, and the first mounting portion is provided with a first positioning portion protruding into the mounting wall, the first The positioning portion is located below the first fixing block and is pressed by the first fixing block, the second mounting portion includes a third side surface and a fourth side surface, and the second mounting portion is provided to protrude into the mounting wall and is close to the welding unit Positioning a second portion, the second positioning portion located between the third side and a fourth side surface of the mounting wall is provided with a second fixing block is located above and pressed against the second positioning portion of the second positioning.

Further, the second positioning portion extends beyond the insulative housing, and the second positioning portion is provided with a free end that is fixed in the second fixing block and is pressed by the second fixing block.

Further, the first mounting portion and the second mounting portion each include an upper surface exposed to the receiving space, and the upper surface of the first mounting portion and the upper surface of the second mounting portion are both opposite to the inner wall surface of the mounting wall Coplanar.

Further, the first mounting portion is provided with a first opening corresponding to the first positioning portion, the first positioning portion is punched out from the first opening, and the second mounting portion is disposed on the third side And a second opening between the fourth side and corresponding to the second positioning portion, the second positioning portion is stamped from the second opening.

Further, the first positioning portion and the second positioning portion are aligned in an insertion direction of the electronic card, and the second positioning portion extends in an insertion direction of the electronic card and the extending direction of the first positioning portion and the second positioning portion are opposite.

Further, the first opening and the second opening are both rectangular and have the same width, and the length of the second positioning portion is greater than the length of the first positioning portion.

Further, the plurality of conductive terminals are embedded in the insulating body.

Further, the mounting wall is provided with a first fixing slot under the first fixing block and a second fixing slot below the second fixing block, and the first positioning portion is received in the first fixing slot, the first The two positioning portions are received in the second fixing groove.

Further, the electronic card connector further includes a shielding case that is fastened on the insulative housing and a card ejecting mechanism that is mounted on the side of the insulative housing. The receiving space is located between the insulative housing and the shielding housing. The card mechanism includes a slider, a spring for providing an elastic force to the slider, and a connecting rod for controlling the slider, the slider is provided with a pressing portion protruding into the receiving space, and the pressing portion is driven by the electronic card Thereby driving the slider to move.

Further, the heights of the first positioning portion and the second positioning portion are different.

Compared with the prior art, the conductive terminals of the electronic card connector of the present invention are provided with first and second positioning portions that are fixed on the insulating body and are respectively pressed by the first and second fixing blocks, thereby ensuring the conductive terminals. Double fixing; in addition, since the second positioning portion is close to the welded portion, the welded portion can be prevented from warping, thereby improving the coplanarity of the welded portion.

Referring to the first to third figures, the present invention discloses an electronic card connector 100 provided with a receiving space 10 for receiving an electronic card (not shown). The electronic card connector 100 includes an insulative housing 1 , a plurality of conductive terminals 2 fixed on the insulative housing 1 , a card ejecting mechanism 3 mounted on the insulative housing 1 , and an insulative housing 1 disposed at the rear end of the receiving space 10 . The detection terminal group 4 and the shielding case 5 are fastened to the insulative housing 1. In the illustrated embodiment, the electronic card connector 100 is a micro SD card connector, and the receiving space 10 is located between the insulative housing 1 and the shielding case 5 (refer to the first figure).

Referring to the third figure, the insulative housing 1 includes a mounting wall 11 for receiving the conductive terminal 2, a rear end wall 12 at the rear end of the mounting wall 11, and an extension wall 13 on the side of the mounting wall 11. As shown in FIG. 4 , the mounting wall 11 includes a front end surface 110 , an inner wall surface 14 exposed to the receiving space 10 , a plurality of terminal mounting slots 15 recessed from the inner wall surface 14 , and a mounting hole 15 in each mounting slot 15 . A plurality of fixed blocks 16. The fixing block 16 includes a first fixing block 161 exposed to the receiving space 10, a second fixing block 162 spaced apart from the first fixing block 161 and adjacent to the front end surface 110, and the first and second fixing blocks 161. A third fixing block 163 is disposed between the 162 and spaced apart from the first and second fixing blocks 161, 162, respectively. The first, second, and third fixing blocks 161, 162, and 163 have the same width and are aligned in the electronic card insertion direction B-B. The first, second, and third fixing blocks 161, 162, and 163 are correspondingly provided with the first, second, and third inner surfaces 1611, 1621, and 1631, and the first, second, and third inner surfaces 1611, 1621. Both 1631 are coplanar with the inner wall surface 14 of the mounting wall 11. The mounting wall 11 is further provided with first, second, and third fixing grooves 1612, 1622, and 1632 located below the first, second, and third fixing blocks 161, 162, and 163, respectively.

Referring to the third figure, the insulative housing 1 further includes a hollow slot 17 between the mounting wall 11 and the rear end wall 12 for providing sufficient insertion of the electronic card into the receiving space 10. The deformation space is given to the conductive terminal 2, thereby reducing the overall height of the electronic card connector 100.

The structures of the conductive terminals 2 are similar. For the convenience of the following description, only one of the conductive terminals 2 is taken as an example. Referring to FIG. 5 to FIG. 7 , the conductive terminal 2 includes a first mounting portion 21 mounted on the mounting wall 11 , and a contact extending from one end of the first mounting portion 21 and protruding into the receiving space 10 . The arm 23 , the second mounting portion 22 extending from the other end of the first mounting portion 21 and mounted on the mounting wall 11 , and the welded portion 24 extending further from the second mounting portion 22 . The first mounting portion 21 includes an upper surface 210, a lower surface 211, a first opening 212 penetrating the upper and lower surfaces 210, 211, and a first positioning portion 213 formed by stamping downward from opposite ends of the first opening 212, respectively. And a third positioning portion 214. The first and third positioning portions 213 and 214 protrude downward from the lower surface 211 of the first mounting portion 21 , that is, the first and third positioning portions 213 and 214 protrude into the mounting wall 11 . The first and third positioning portions 213, 214 have the same width and are aligned in the electronic card insertion direction B-B, wherein the first and third positioning portions 213, 214 extend in opposite directions. The first mounting portion 21 further includes a first side 215 and a second side 216 on both sides. The first and third positioning portions 213 and 214 are located between the first and second side surfaces 215 and 216. If the arrangement is performed, the first and third positioning portions 213 may be stamped and formed by using the width of the first mounting portion 21 . 214, thereby saving material costs.

The second mounting portion 22 includes an upper surface 220 , a lower surface 221 , a second opening 222 penetrating the upper and lower surfaces 220 , 221 , and a second positioning portion 223 stamped from the second opening 222 . The second positioning portion 223 protrudes downward from the lower surface 221 of the second mounting portion 22 , that is, the second positioning portion 223 protrudes into the mounting wall 11 . The second positioning portion 223 is cantilevered and is provided with a free end 224. The first, second, and third positioning portions 213, 223, and 214 have the same width and are aligned in the electronic card insertion direction BB, wherein the second positioning portion 223 extends along the electronic card insertion direction and the first positioning portion The direction in which the second positioning portion 223 extends is also opposite to the second positioning portion 223. The second mounting portion 22 further includes a third side 225 and a fourth side 226 on both sides. The second positioning portion 223 is located between the third and fourth side surfaces 225 and 226. For example, the second positioning portion 223 can be stamped and formed by the width of the second mounting portion 22, thereby saving material cost. In the illustrated embodiment of the present invention, the width of the second mounting portion 22 is smaller than the width of the first mounting portion 21, thereby forming a stepped surface, which is more conducive to the fixing of the conductive terminal 2. In addition, the first opening 212 and the second opening 222 are both rectangular, the same width and aligned in the electronic card insertion direction B-B, thereby reducing the difficulty of punching. The length of the second positioning portion 223 is greater than the length of the first positioning portion 213 and the third positioning portion 214. The second positioning portion 223 is adjacent to the soldering portion 24 and is connected to the soldering portion 24. Therefore, the relative fixing of the soldering portion 24 can be ensured by fixing the second positioning portion 223, that is, the soldering portion 24 is not caused by the first The fixing of the third positioning portions 213, 214 is relatively stable and upturned. As shown in FIG. 8 , the second positioning portion 223 is different from the heights of the first and third positioning portions 213 and 214 , so that a displacement can be formed in the vertical direction, which is more advantageous for fixing the conductive terminal 2 . In the illustrated embodiment, the second positioning portion 223 is higher than the first and third positioning portions 213 and 214, so that the second positioning portion 223 can penetrate the center of the mounting wall 11 to ensure that the insulating body 1 has Sufficient force to hold the conductive terminal 2.

The contact arm 23 is higher than the inner wall surface 14 of the mounting wall 11 and correspondingly above the hollow slot 17 for electrical contact with the electronic card. After the electronic card is inserted into the accommodating space 10, the contact arm 23 is deformed downward due to the pressing force of the electronic card, and the hollow groove 17 can provide sufficient deformation space to the contact arm 23, thereby reducing the electronic card connection. The overall height of the device 100.

The weld portion 24 extends forward beyond the front end face 110 of the mounting wall 11 and the weld portion 24 is lower than the second positioning portion 223 (see FIG. 8). By fixing the second positioning portion 223 in the mounting wall 11, it is ensured that the welded portion 24 of the conductive terminal 2 has a better coplanarity for surface soldering (SMT).

The first terminal portion 213 is received in the first fixing groove 1612 and is pressed by the first fixing block 161; the second positioning portion 223 is received in the first terminal. The second fixing portion 214 is received in the second fixing groove 1632 and is pressed by the third fixing block 163. Since the first and third positioning portions 213 and 214 are lower than the second positioning portion 223, the first and third fixing blocks 161 and 163 may have a larger thickness to press the first and third positioning portions 213, 214, thereby improving the fixing effect. The second positioning portion 223 partially extends beyond the front end face 110 of the mounting wall 11 and the free end 224 of the second positioning portion 223 is pressed by the second fixing block 162. The upper surface 210 of the first mounting portion 21 and the upper surface 220 of the second mounting portion 22 are both coplanar with the inner wall surface 14 of the mounting wall 11, that is, only the lower surface of the conductive terminal 2 is completely located in the mounting wall 11 Thereby reducing the height of the electronic card connector 100.

Of course, the conductive terminal 2 can also be fixed on the insulative housing 1 in an insert-molding manner to save assembly costs, and the object of the present invention can also be achieved.

The card ejecting mechanism 3 includes a slider 31, a spring 32 for providing an elastic force to the slider 31, and a link 33 for controlling the slider 31. The slider 31 is provided with a pressing force protruding into the receiving space 10. In the portion 311, the pressing portion 311 is driven by the electronic card to drive the slider 31 to move. The card ejecting mechanism 3 is a push-push type ejecting mechanism commonly used in the industry, and its detailed working principle has been well known to those skilled in the art of electronic card connector technology, and details are not described herein.

In summary, the creation meets the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and those skilled in the art should be equivalent to the equivalent modifications or changes made by God of the present invention. It is covered by the following patent application.

100. . . Electronic card connector

1. . . Insulating body

10. . . Containing space

11. . . Mounting wall

110. . . Front end face

12. . . Rear wall

13. . . Extension wall

14. . . Inner wall

15. . . Terminal mounting slot

16. . . Fixed block

161. . . First fixed block

1611. . . First inner surface

1612. . . First fixing slot

162. . . Second fixed block

1621. . . Second inner surface

1622. . . Second fixing slot

163. . . Third fixed block

1631. . . Third inner surface

1632. . . Third fixing slot

17. . . Hollow slot

2. . . Conductive terminal

twenty one. . . First installation

210. . . Upper surface

211. . . lower surface

212. . . First opening

213. . . First positioning part

214. . . Third positioning part

215. . . First side

216. . . Second side

twenty two. . . Second installation

220. . . Upper surface

221. . . lower surface

222. . . Second opening

223. . . Second positioning part

224. . . Free end

225. . . Third side

226. . . Fourth side

twenty three. . . Contact arm

twenty four. . . Welding department

3. . . Card withdrawal agency

31. . . Slider

311. . . Compression department

32. . . spring

33. . . link

4. . . Detection terminal group

5. . . Shaded housing

The first figure is a perspective assembled view of the electronic card connector of the present invention.

The second figure is a partially exploded perspective view of the electronic card connector shown in the first figure.

The third figure is an exploded perspective view of the electronic card connector shown in the first figure.

The fourth figure is a partial enlarged view of the circled portion in the third figure.

Figure 5 is a perspective view of one of the conductive terminals of the electronic card connector of the present invention.

Figure 6 is a perspective view of the conductive terminal shown in Figure 5 at another angle.

The seventh figure is a front view of the conductive terminal shown in the fifth figure.

Figure 8 is a cross-sectional view of the electronic card connector of the present invention taken along line VIII-VIII of the first figure.

2. . . Conductive terminal

twenty one. . . First installation

210. . . Upper surface

212. . . First opening

213. . . First positioning part

214. . . Third positioning part

215. . . First side

216. . . Second side

twenty two. . . Second installation

220. . . Upper surface

222. . . Second opening

223. . . Second positioning part

225. . . Third side

226. . . Fourth side

twenty three. . . Contact arm

twenty four. . . Welding department

Claims (10)

An electronic card connector is provided with a receiving space for receiving an electronic card, the electronic card connector includes an insulating body and a plurality of conductive terminals fixed on the insulating body; the insulating body is provided with a mounting wall, the mounting wall Providing a first fixing block and an inner wall surface exposed to the receiving space; at least one of the plurality of conductive terminals is provided with a first mounting portion mounted on the mounting wall, extending from one end of the first mounting portion a contact arm protruding into the receiving space, a second mounting portion extending from the other end of the first mounting portion and mounted on the mounting wall, and a soldering portion extending further from the second mounting portion, the contact arm being higher than the mounting portion The inner wall surface of the wall is for electrically contacting the electronic card, and the first mounting portion is provided with a first positioning portion protruding into the mounting wall, the first positioning portion is located below the first fixing block and is first The second mounting portion includes a third side surface and a fourth side surface, wherein the second mounting portion is provided with a second positioning portion that protrudes into the mounting wall and is adjacent to the soldering portion. Second positioning Located between the third side and the fourth side, the mounting wall is provided with a second positioning portion located above and pressed against the second positioning portion of the second fixing block. The electronic card connector of claim 1, wherein the second positioning portion extends beyond the insulative housing, and the second positioning portion is provided with a free end, the free end being fixed in the second fixing block and Pressed by the second fixed block. The electronic card connector of claim 1, wherein the first mounting portion and the second mounting portion each include an upper surface exposed to the receiving space, and the upper surface of the first mounting portion The upper surface of the second mounting portion is coplanar with the inner wall surface of the mounting wall. The electronic card connector of claim 1, wherein the first mounting portion is provided with a first opening corresponding to the first positioning portion, and the first positioning portion is stamped from the first opening The second mounting portion is provided with a second opening between the third side surface and the fourth side surface and corresponding to the second positioning portion, and the second positioning portion is stamped from the second opening. The electronic card connector of claim 4, wherein the first positioning portion and the second positioning portion are aligned in an insertion direction of the electronic card, and the second positioning portion extends in the insertion direction of the electronic card and the first positioning The portion is opposite to the extending direction of the second positioning portion. The electronic card connector of claim 5, wherein the first opening and the second opening are both rectangular and have the same width, and the length of the second positioning portion is greater than the length of the first positioning portion. The electronic card connector of claim 1, wherein the plurality of conductive terminals are embedded in the insulative body. The electronic card connector of claim 1, wherein the mounting wall is provided with a first fixing groove below the first fixing block and a second fixing groove below the second fixing block, the first The positioning portion is received in the first fixing groove, and the second positioning portion is received in the second fixing groove. The electronic card connector of claim 1, wherein the electronic card connector further comprises a shielding shell that is fastened to the insulative housing and a card ejecting mechanism that is mounted on one side of the insulative housing, the receiving space The ejecting mechanism includes a slider, a spring for providing an elastic force to the slider, and a connecting rod for controlling the slider, wherein the slider is provided to protrude into the receiving space. The pressing portion drives the electronic card to drive the slider to move. The electronic card connector according to any one of claims 1 to 9, wherein the first positioning portion and the second positioning portion have different heights.